Who is Grammarly for?
Best for: People who revise existing writing across everyday apps and want inline corrections, tone guidance and limited or expanded AI assistance.
Probably not for: End-to-end research automation, media production, or users who cannot send workplace text to a cloud writing service.
Three practical uses
- Correct grammar, spelling and tone while drafting in supported apps
- Rewrite sentences and adapt copy for a target reader
- Check a final draft for plagiarism and AI-generated text on Pro
What stands out
- A permanent free tier covers core corrections and limited AI prompts
- Works across common desktop, browser and mobile writing surfaces
- Pro expands rewriting, suggestions and review tools in one subscription
Limits to check before you pay
- The public plan page does not state whether the displayed $12 Pro price is monthly or an annual-billing equivalent
- Cloud processing and optional product-improvement settings require a privacy review for sensitive text
- Plagiarism and AI-detection results are signals that still need human interpretation
Always verify export rights, commercial-use rules, privacy handling and regional availability for your exact plan. When the official source does not make a point clear, AI RankLab labels it as not verified rather than guessing.
What changed or was verified
- Grammarly currently lists Free at $0 with 100 AI prompts and Pro at $12 with 2,000 AI prompts, full-sentence rewrites, plagiarism review and AI-text detection. Official pricing ↗
- Grammarly's AI overview lists specialized agents including Proofreader, Paraphraser, Reader Reactions and Humanizer, alongside its cross-app Go assistant and Docs editor. Official AI overview ↗
- Grammarly says external LLM providers may not train on user content, while Grammarly may use aggregated and de-identified samples for improvement unless the user opts out. Official privacy FAQ ↗
Evidence note: these are source-verified product facts, not hands-on performance findings. Product access and pricing can change after the review date.
Alternatives to Grammarly
ChatGPT
A multimodal assistant for research, drafting, files, images, GIFs, voice, coding and collaborative creator workflows across Chat, Work and Codex.
Claude
Anthropic's assistant for source-led writing, analysis, coding, files, presentations and long-document workflows.
Notion AI
Workspace-native AI for drafting, databases, meeting notes, connected search, long-running agent work and MCP-linked tools.
Sources and update log
Primary facts come from the official product or pricing page. Added 2026-09-18; last editorial review 2026-10-31. Corrections can be sent through our correction process.